KR20020063443A - Ventilation system for fiber ejector - Google Patents

Abstract

PURPOSE: A ventilation equipment system for a fiber spinning machine is provided which is characterized by intercepting cooling gas escaped from a cooing process effectively, providing with a clean working condition, reducing installation cost and increasing productivity. CONSTITUTION: The fiber spinning machine(100) is comprised of: a spinning nozzle; a gas inlet flowing the cooling gas for cooling fiber; a gas outlet exhausting the cooling gas; and a fiber outlet exhausting the cooled fiber. The ventilation equipment system for the fiber spinning machine is comprised of: a dust collecting plate(210) which is installed on a lower part of the fiber spinning machine, having an outlet confronted with the fiber outlet; a suction exhaust pipe(230) installed between a lower side of the fiber spinning machine and the dust collecting plate(210); and a compressed air supply pipe(220) which is installed between the lower side of the fiber spinning machine and the dust collecting plate(210), having many nozzles injecting compressed air. Many nozzles are arranged in a direction of the suction exhaust pipe(230).

Description

Ventilation system for fiber ejectors

The present invention relates to a ventilation system, and more particularly to a ventilation apparatus that can maximize the ventilation effect for the harmful cooling gas used in the fiber spinning machine during the fiber manufacturing process.

A fiber spinning machine is a device for spinning and cooling a liquid fiber material synthesized at a high temperature in a fiber manufacturing process in the form of fibers in a fiber form.

1 is a schematic diagram schematically showing the structure of a fiber spinning machine 100 used in a conventional fiber manufacturing process, comprising a fiber spinning nozzle 110, a gas inlet 120 through which cooling gas is introduced, It is composed of a gas outlet 130 for discharging, and a fiber outlet 140 for discharging the spun fiber.

Spinning nozzle 110 is a part in which the fiber raw liquid melted at a high temperature is discharged in a liquid state, and a plurality of identical nozzles are listed.

The gas inlet 120 is a portion into which a cooling gas in which temperature, humidity, and components are specifically controlled is introduced to cool the fibrous crude solution of the liquid state radiated from the spinning nozzle 110, and is radiated from the spinning nozzle 110. Cooled liquid fiber material.

The gas discharge port 130 is configured to remove the cooling gas that has been introduced for cooling the fiber feed solution in the spinning liquid state.

The fiber outlet 140 is a portion configured for the discharge of the fiber yarn radiated by the spinning nozzle 110 and cooled by the cooling gas, the lower portion of the fiber outlet 140 processing and processing of the cooled fiber yarn Other devices such as spools 150 or rollers are installed.

2 is a perspective view illustrating the structure of the lower end of the fiber spinning machine 100 in detail, wherein the fiber stock solution discharged through the spinning nozzle 110 flows through the gas inlet 120 while passing through the inside of the fiber spinning machine. It is cooled by the cooled cooling gas and fixed to the fiber yarn.

The cooling gas circulating inside the fiber spinning machine 100 and cooling the fiber stock solution is discharged through the gas discharge port 130, and the cooled fiber yarn has a fiber discharge port 140 formed under the fiber spinning machine 100. It is discharged to the outside through the spool 150 is wound.

By the way, the cooling gas used in the conventional fiber spinning machine 100 as described above is not a general air but a kind of organic solvent containing a large amount of solvent components, which is a very harmful gas to the human body. The harmful cooling gas is to be circulated only in the fiber spinning machine 100, the fiber cooler 100 by the movement of the internal fluid by the pressure of the cooling gas flowing into the fiber spinning machine 100 and the fiber yarns. There is a problem that outflow to the outside through the gap of the fiber outlet 140 configured at the bottom of the.

In addition, since the air purification equipment must be installed indoors to remove the harmful cooling gas leaked to the outside of the fiber spinning machine, the cost of the facility increases, the production cost increases due to the increase of such costs, and the product price increases. Will occur.

In addition, due to the poor working environment due to the cooling gas to increase the turnover phenomenon, there is a risk of industrial accidents due to leaked cooling gas.

The present invention has been made to solve the above problems, the object of the present invention is to block the leakage of the cooling gas used to cool the fiber stock spinning from the fiber spinning machine, it can provide a comfortable and safe working environment To provide a ventilation system for a fiber spinning machine.

Figure 1 is a schematic diagram showing a simplified structure of a conventional fiber spinning machine

Figure 2 is a perspective view showing in more detail the bottom structure of the fiber spinning machine of Figure 1

Figure 3 is a perspective view showing the structure of the ventilation system for a fiber spinning machine according to the present invention

Figure 4 is a perspective view showing the structure of the compressed air supply pipe according to the present invention

5 is a conceptual diagram for explaining the principle of collecting the cooling gas of the ventilation system for a fiber spinning machine according to the present invention.

<Description of the symbols for the main parts of the drawings>

30, 140: fiber outlet 110: fiber spinning nozzle

120: gas inlet 130: gas outlet

210: dust collecting plate 220: compressed air supply pipe

225: injection hole 230: suction exhaust pipe

In order to achieve the above object, the present invention provides a fiber spinning nozzle for spinning the fiber, a gas inlet for introducing a cooling gas for cooling the fiber spun from the fiber spinning nozzle, a gas discharge port for discharging the cooling gas, Located at, and installed in the fiber spinning machine having a fiber discharge port extending in the longitudinal direction for discharging the fiber cooled by the cooling gas, is installed in the lower portion of the lower surface of the fiber spinning machine and the discharge port corresponding to the fiber discharge port With a dust collecting plate; A suction exhaust pipe disposed between the lower surface of the fiber spinning machine and the dust collecting plate; It is provided between the dust collecting plate and the lower surface of the fiber spinning machine, and provides a ventilation system for a fiber spinning machine comprising a compressed air supply pipe is provided in the direction of the suction exhaust pipe is a plurality of compressed air injection port for injecting compressed air.

Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

Figure 3 is a perspective view briefly showing the structure of the fiber spinning machine equipped with a ventilation system according to the present invention, a general fiber spinning machine (100); A suction exhaust pipe 230 for discharging the cooling gas; A dust collecting plate 210 for collecting cooling gas; Compressed air supply pipe 220 is provided with a plurality of compressed air injection port (225).

The fiber spinning machine 100 is a fiber spinning machine generally used in a fiber manufacturing process, and has a structure in which a liquid fiber injected from an upper spinning nozzle 110 is cooled by a cooling gas and discharged to a fiber outlet 140. The gas inlet 120 and the gas exhaust 130 for the inlet and outlet of the cooling gas is configured.

At least two suction exhaust pipes 230 are installed on the lower surface of the fiber spinning machine 100 in parallel with the length direction of the fiber discharge port 30, and serve to collect and discharge air.

The dust collecting plate 210 is configured for effective air collection to the suction exhaust pipe 230, and is spaced apart from the lower surface of the fiber spinning machine 100 around the suction exhaust pipe. In addition, it has a discharge outlet equal to or greater than the interval of the fiber discharge port 30, it is possible to adjust the angle with the lower surface of the fiber thrower according to the amount and use of the cooling gas to be collected.

The compressed air supply pipe 220 is installed at least two or more as a pipe shape that can send air installed between the lower surface of the fiber spinning machine 100 and the dust collecting plate 210, as shown in FIG. A plurality of means such as a compressed air injection port 225 that can be injected are formed.

5 is a conceptual view for explaining the principle of collecting the cooling gas of the ventilation system for a fiber spinning machine according to the present invention, showing a cross section taken along the line A-B of FIG.

An arrow time (->) in the figure indicates the flow direction of air.

Compressed air supply pipe 220 is located between the lower surface of the fiber spinning machine 100 and the dust collecting plate 210, the compressed air to the intake exhaust pipe 230 through the compressed air injection port 225 of the compressed air supply pipe 220 High speed injection

Compressed air injected through the compressed air injection port 225 is compressed air supply pipe 220 by an entrainment phenomenon, which is a phenomenon in which surrounding fluid is collected and discharged by a fluid ejection from a nozzle. ) To collect the surrounding cooling gas is injected into the suction exhaust pipe (230).

Here, the entrainment phenomenon, as shown in Figure 6, when the fluid is injected at high speed, the injected air is attracted to the surrounding fluid by the viscosity of its components, so that the fluid attracted and moved The local vacuum is formed at the position where it is, and thus the surrounding fluid is collected.

In the present invention, it is preferable to prevent the external exposure of the cooling gas used for cooling the fibers radiated from the fiber spinning machine 100 and to maintain the suction exhaust pipe 230 to below atmospheric pressure for the efficient collection of cooling gas, The air injected by the compressed air supply pipe 220 and the cooling gas collected by the entrainment phenomenon are more effectively discharged.

In order to further facilitate the inflow of the cooling gas, the method of making the suction exhaust pipe 230 lower than atmospheric pressure includes various methods such as discharging air inside the suction exhaust pipe 230 by using a blower or a vacuum pump using a motor. This will not be described in detail as it is already known in the art.

The preferred embodiment of the ventilation system for a fiber spinning machine according to the present invention has been described above, but this is merely an example, and the number of the compressed air supply pipe 220 and the suction exhaust pipe 230 installed between the dust collecting plate 210 and the dust collecting plate is further increased. It will be possible to increase the discharge of the cooling gas more surely and easily, and also can be configured as a ventilation system using only one of the compressed air supply pipe 220 or the suction exhaust pipe 230, such an entrainment ( The application of the ventilation system for the prevention of harmful gas leakage using the phenomena may be applied in various ways besides the fiber spinning machine.

As described above, by using the ventilation system according to the present invention, it is possible to effectively block the cooling gas leaking in the fiber cooling process of the fiber spinning machine, thereby providing an advantageous working environment.

In addition, compared to the ventilation system installed at a high cost of the entire plant, since it is installed directly on the discharge source of the cooling gas, there is an advantage of blocking the original cooling gas, increasing and decreasing the cost of the facility and thereby improving productivity.

Claims (4)

A spinning nozzle for spinning the fibers, a gas inlet for introducing a cooling gas for cooling the fibers radiated from the spinning nozzle, a gas outlet for discharging the cooling gas, and a fiber located on a lower surface and cooled by the cooling gas A noxious gas ventilation system of a fiber spinning machine having a fiber outlet extending in the longitudinal direction to discharge the gas, A dust collecting plate disposed below the lower surface of the fiber spinning machine and having a discharge port corresponding to the fiber discharge port; A suction exhaust pipe disposed between the lower surface of the fiber spinning machine and the dust collecting plate; And a compressed air supply pipe disposed between the dust collecting plate and the lower surface of the fiber spinning machine and having a plurality of injection holes for injecting compressed air toward the suction exhaust pipe. The method according to claim 1, The compressed air supply pipe is two, and the ventilation system is arranged with the fiber outlet in between. The method according to claim 1, And at least two suction exhaust pipes, each of which is disposed at a bottom edge of the fiber spinning machine in parallel with the longitudinal fiber discharge port. The method according to claim 3, The suction exhaust pipe is a ventilation system having a pressure below atmospheric pressure